94 TRANSACTIONS OF THE [mAR. 2, 



Comet c 1881 (Schaebei'le), Elements, Ephemeris, and Observations of. 



I., 163, 181, 182, 186; II., 60. 



Polaiiscopic Observations of. By Arthur W. Wright. I., 214. 



Comet e 1881 (Barnard), Elements, Ephemeris, and Observations of. I., 



206, 221, 237. 

 Comet/ 1881 (Denning), Elements, Ephemeris, and Observations of. I., 



212, 222 ; II., 42. 



On the Orbit of. By William E. Plummer. III., 1. 



Comet gf 1881 (Swift), Elements, Ephemeris, and Observations of. I., 



238 ; II., 19, 20, 42. 

 Comets III. and IV. 1881, Comet I. 1882. and the Great Comet of 1882, 



Spectroscopic Observations of. By Ralph Copeland and J. G. Lohse. 



II., 225. 

 Comet Wells, 1883, Elements and Observations of. II., 94, 95, 96. 



The Spectrum of. II., 157. 



Comete 1882 I. (Wells), Sur la. Par Th. Bredichin. III., 41. 

 Comete de 1882 II., Recherches sur la. Par Th. Bredichin. III., 81. 

 Comet 1883 I., Spectroscopic Observations of. III., 130. 



11. HISTORY OF ASTRONOMY. 



Observatory at Peking, The Instruments in the Old. By J. L. E. 



Dreyer. I., 134. 

 Recherches sur I'Astronomie des Anciens, Par H. C. F. C. Schjellerup, 

 I. Sur le Chronometre Celeste d'Hipparque. I., 25. 



Ibid. II. On the Total Solar Eclipses observed in China in the 



Years B.C. 708, B.C. 600. and B.C. 548. I., 41. 

 -Ibid. III. Sur les Conjonctions d'Etoiles avec la Lune rappor- 



tees par Ptolemee. I., 223. 

 Record of the Progress of Astronomy during the Year 1880. By the 

 Editors. I., 56. A detailed account of the principal investigations 

 made and results published, during the year, in the various de- 

 partments of Astronomy. 



III. METEORIC ASTRONOMY. 



Meteor Streams, by W. F. Denning. I., 194. A list and description of 

 "a few of the most active meteor showers observed at Bristol 

 since 1876." 



Ueber das Zodiakallicht. Von Prof. W. Klinkerfues. II., 91. 



IV. PRACTICAL ASTRONOMY. 



On the Determination of the Error and Rate of a Clock by the Method 

 of Least Squares. By Ormond Stone. I., 116. The author applies 

 the formulae which he develops to a discussion of the rates of the 

 Leiden Clock, Hohwii No. 17, as given by Kaiser in Ast. Nach., vol. 

 63, pp. 215-220. 



Positionsringmikrometer, Das. Von Dr. H. Kobold. I., 187. 



V. SIDEREAL ASTRONOMY. 



Comparison Stars. A Suggestion to Astronomers (J. L. E. Dreyer). 

 I., 49. Dr. Dreyer suggests that a good field for a transit circle is 



